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Old 02-27-2013, 03:25 PM   #31
Cortez
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Joined: Apr 2006
Location: Croatia
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Quote:
Originally Posted by Phipsd View Post
Cortez: Are the sliders able to adjust on hills any when running at highway speeds?

The reason why I ask is that I live on the West Coast of British Columbia surrounded by the Coastal mountain range. One reason I haven't gone to sliders is the drop in rpms at highway speeds. That's the last thing I need.

Before I got a new CVT belt at 21000 km I noticed a curious thing with the old worn belt. At a level cruise the rpm's were about the same as always. However on big hills I had maybe 300-400 more rpms and the difference in performance was HUGE. The bike could accelerate quickly on hills when running at speed, where it couldn't before.

That experience taught me that even a small increase in rpms under load compared to stock; makes for an outsize difference in performance and a much more responsive fun bike.

If the sliders can do that they would be the cat's meow.
That's exactly what will happen, but not because they're sliders, but because
they're lighter.

I had the same exact thing.
5500-5600 WOT revs stock, about the same up hills, maybe slightly less.
With 10% lighter sliders, I got 6500 WOT revs, and never under 6000 going
up hill which is still at least 400 revs more then I had before. As you said,
the difference in this range is HUGE.

My scoot has it's peak torque at 6500 revs so the difference between
5500 and 6500 revs was huge. It made the scoot go 2 seconds faster
0-60mph too (from 11 to 9 seconds!).

Bare in mind that even if you're cruising at 65mph at lower revs then
before, WOT will result in MORE revs then stock, while your stock bike
might remain at same revs and not even accelerate over 65mph at
the incline. Been there, done that. Had 30hp on tap, couldn't use more
then 23-24 at 6000 revs.

I've went on from the 6500 setup to 8000, then backing it off to 7500
and now 7000, 2 different variators, multiple combinations of regular
weights and sliders. The sliders win in every single match, you just gotta
find the correct weight, and if you want more WOT revs up hills, you need
lighter weights.

HOWEVER, what's keeping the revs lower then they should be going up
a hill in too tall a gear (so to speak) is a weak contra-spring, which you can
swap out too, but that's like going from a "drive" to "sport" mode in an
automatic transmission car.

You'll have higher revs even when you don't want them.

Try dr pulley's first. Make note of where the engine revs are at WOT, and
at low and high cruising speeds. Get 10% lighter sliders, take notes again
then drop me a not and we'll compare.

If your responds similar to mine, I'll be able to tell you how it would be
with more variations of the slider weights and/or with a malossi multivar
with regular rollers OR sliders.

I've spent a lot of money on experimenting.. but bottom line is.. 10%
lighter sliders gave me 90% of performance upgrade that I have now
for virtually no money.

The Malossi CVT was $300, and I'm on my 4th set of weights in it right
now (went from 20 to 25 incrementally).



Bottom line - aim for the peak torque revs or slightly above at WOT.
You can try out cheapo rollers of different weights to determine which weights you
need, then just get sliders of the same weight and you're done.

You'll be able to do lower revs then stock with sliders up to 20% lighter then stock round weights.

I hope I'm making sense here.
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